Changsha Xingheda Technology Co., Ltd
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Version Description
The functional version of the IFX2 is SL91.
Application
IFX2 boards form XPIC workgroups to expand the capacity of an Integrated IP microwave hop (native E1+Ethernet) when transmitting native E1 services, native Ethernet services, native MPLS/PWE3 services, or a combination of these services.
Figure 1 Application scenario of IFX2 boards
NOTE:
In the preceding figure, if transmitted over Integrated IP microwave, E1 services can be native E1 services or CES/ATM E1 services, and Ethernet services can be native Ethernet services or ETH PWE3 services.
Service boards shown in the preceding figure can be Ethernet interface boards, E1 interface boards, or Smart E1 processing boards.
Functions and Features
The IFX2 receives and transmits one channel of IF signal, and provides a management channel and -48 V power supply to the ODU. In addition, it supports cross-polarization interference cancellation (XPIC) processing for IF signals.
Table 1 lists the functions and features that the IFX2 supports.
Table 1 Functions and features that the IFX2 supports
| Function and Feature | Description | |
| Basic functions | Receives and transmits one channel of IF signal. Provides a management channel to the ODU. Supplies the required -48 V power to the ODU. | |
| Microwave type | Integrated IP microwave NOTE: Integrated IP microwave is compatible with Hybrid microwave and Packet microwave. | |
| Service type | Native E1 + Ethernet NOTE: Ethernet services can be native Ethernet services or PWE3-encapsulated packet services. | |
| Backplane bus bandwidth | 1 Gbit/s | |
| AM | Supported | |
| Automatic transmit power control (ATPC) | Supported | |
| E1 priority | Supported only in Integrated IP microwave mode when native TDM services are E1 services | |
| XPIC | Supported | |
| Microwave working mode | See Technical Specifications of the IFX2. | |
| Protection | 1+1 HSB/FD/SD protection | Supported |
| N+1 protection | Supported | |
| SNCP for TDM services | Supported | |
| License | Air-interface capacity license | Supported |
| AM license | Supported | |
| Clock | Physical layer synchronization | Clock on the air-interface link |
| Physical-layer clock protection | Supports the following clock protection schemes: Protection based on clock source priorities Protection by running the SSM protocol Protection by running the extended SSM protocol | |
| Packet time synchronization | Supports IEEE 1588v2 time synchronization. Supports ITU-T G.8275.1 time synchronization. | |
| Packet frequency synchronization | Not supported | |
| DCN | Inband data communication network (DCN) | Supported. The DCN bandwidth is configurable. |
| Outband DCN | Supports one DCC that is composed of three DCC bytes. | |
| Ethernet service features | See Table 2. | |
| MPLS functions | See the description of the MPLS/PWE3 functions that the system control, switching, and timing board supports. | |
| PWE3 functions | ||
| O&M | Loopback | Supports the following loopback types: Inloops and outloops at IF ports Inloops and outloops at multiplexing ports Inloops at the MAC layer of IF_ETH ports NOTE: An IF_ETH port is an internal Ethernet port on the IF board operating in Integrated IP microwave mode and is used to receive or transmit Ethernet services transmitted in Integrated IP microwave mode. |
| Cold reset and warm reset | Supported | |
| In-service FPGA loading | Supported | |
| PRBS BER test at IF ports | Supported | |
| Queries of board manufacturing information | Supported | |
| Queries of the board power consumption | Supported | |
| Board temperature monitoring | Supported | |
| Board power monitoring | Supported | |
Table 2 Ethernet service functions that the IFX2 supports
| Function and Feature | Description | |
| Services | Native Ethernet services | E-Line services Port-based E-line services VLAN-based E-line services E-Line services carried by QinQ links E-LAN services E-LAN services based on IEEE 802.1d bridges E-LAN services based on IEEE 802.1q bridges E-LAN services based on IEEE 802.1ad bridges |
| PWE3 Ethernet services | E-Line services carried by PWs E-Aggr services carried by PWs E-LAN services carried by PWs, that is, virtual private LAN services (VPLSs), supported only when the system control, switching, and timing board is an SLB2CSHN board | |
| ERPS | Supports the ERPS function that complies with ITU-T G.8032 v1/v2. | |
| ETH-OAM | Supports IEEE 802.1ag-compliant ETH-OAM function. Supports IEEE 802.3ah-compliant ETH-OAM function. Supports packet loss, delay, and delay variation measurement functions that comply with ITU-T Y.1731. | |
| LAG | Supported | |
| Spanning tree protocol | Supports Multiple Spanning Tree Protocol (MSTP) that runs only Common and Internal Spanning Tree (CIST) instances. This type of MSTP provides the same functions as Rapid Spanning Tree Protocol (RSTP). | |
| IGMP snooping | Supported | |
| QoS | See the description of the QoS functions that the system control, switching, and timing board supports. | |
| RMON | Supported | |
Working Principle and Signal Flow
This section describes how to process one IF signal in Integrated IP microwave mode, and it serves as an example to describe the working principle and signal flow of the IFX2.
Functional Block Diagram
Figure 1 Functional block diagram of the IFX2